I've been debating the 12-35 ever since it came out - mostly because I would dearly love for Oly to release something slightly longer and f2.8-4-ish in the same price bracket, but I came across a great deal on a 6 month old 12-35, absolutely mint (read: looks brand new in box) that still has a year and a half of warrantee on it, so I went ahead and bought it. Only fiddled around in the house (it's gray and dark outdoors), but the size balances nicely on the E-M5. Feels like a slightly tubbier version of the 7-14, and gives me the ideal travel setup. I'll probably sell the 12-50, maybe the 45, very maybe the 20, add the 75 and the 25 and I'll have my 'ideal' kit. Until/unless I go on Safari and Panasonic or Olympus release a proper fast telephoto and a teleconverter, but who knows if that's ever going to happen!